CVE-2026-77539 | Ubiquiti UniFi OS Server up to 5.1.36 input validation (EUVD-2026-66366)

August 26, 2026 Yanac

A vulnerability classified as very critical was found in Ubiquiti UniFi OS Server up to 5.1.36. This affects an unknown part. Such manipulation leads to improper input validation.

This vulnerability is listed as CVE-2026-77539. The attack may be performed from remote. There is no available exploit.

Upgrading the affected component is advised.VulDB Recent EntriesRead More